package com.irssproject.app.utils;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

import freemarker.template.utility.StringUtil;

public class Utils {

	public static String digestMD5(String str) throws NoSuchAlgorithmException{
        MessageDigest md = MessageDigest.getInstance("MD5");
        md.update(str.getBytes());
 
        byte byteData[] = md.digest();
 
        //convert the byte to hex format method 1
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < byteData.length; i++) {
         sb.append(Integer.toString((byteData[i] & 0xff) + 0x100, 16).substring(1));
        }
  
        //convert the byte to hex format method 2
        StringBuffer hexString = new StringBuffer();
    	for (int i=0;i<byteData.length;i++) {
    		String hex=Integer.toHexString(0xff & byteData[i]);
   	     	if(hex.length()==1) hexString.append('0');
   	     	hexString.append(hex);
    	}
    	return hexString.toString();
	}
	
	/**
	 * input format str 1,2,3,4,5,6...
	 * @param jsonStr
	 * @return an array with one number per pos and without commas
	 */
	public static String[] jsonStringToArray(String jsonStr){
		return StringUtil.split(jsonStr, ',');
	}
}
